PT-2026-34653 · Zurich Instruments · Labone

Published 2026-04-23 · Updated 2026-04-23 · CVE-2026-6903

NVD

CVSS v3.1

7.5

High

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

The LabOne Web Server, backing the LabOne User Interface, contains insufficient input validation in its file access functionality. An unauthenticated attacker could exploit this vulnerability to read arbitrary files on the host system that are accessible to the operating system user running the LabOne software.

Additionally, the Web Server does not sufficiently restrict cross-origin requests, which could allow a remote attacker to trigger file access from a victim's browser by directing the victim to a malicious website.

The vulnerability is only exploitable when the LabOne Web Server is running. Installations using only the LabOne APIs without starting the Web Server are not exposed.

Fix

Origin Validation Error

Path traversal

Weakness Enumeration

CWE-346

CWE-22

Related Identifiers

CVE-2026-6903

Affected Products

Labone

References · 3

• https://zhinst.com/support/security/2026/zi-sa-2026-001 · Vendor Advisory
• https://zhinst.com/support/download-center · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-6903 · Security Note